Packet container



March 1957 RODERICK WM. HOAG 2,784,896

' PACKET CONTAINER Filed June 10, 1954 nited States Patent PACKET CONTAINER Roderick Wm. Hoag, Melrose, Mass. Application June 10, 1954, Serial No. 435,714

1 Claim. (c1. 229- 2s) My invention relates to improvements in dispensing packages for dispensing individual portions of detergents, drugs, food products and the like, and which are so inexpensive that they may be discarded after a single use.

An important advantage of my improved container is that it is adapted to be fabricated, filled and sealed by a sequence of operations by means of automatic machinery. Another important advantage of my improved container is the top closure member which projects to provide a means for breaking the top seal to dispense the contents of the package without unduly distorting the walls of the container.

The container may be made from any desired material, depending on the product to be packaged, the protection required, and the several other factors which must usually be considered when planning the production of boxes and containers. However, I prefer to use a sheet or web material which will seal to itself upon the application of heat and light pressure. Materials which I have found suitable are heat seal cellophane, foil, polyethylene, polyethylene coated paper, and paper coated or laminated with any of the various plastics, adhesives or hot melt materials available for heat sealing purposes.

The body of the container is shown in the drawing as being substantially semi-circular in cross section; however, this may be rectangular or in any other form without departing from the spirit of my invention.

One object of my invention is to provide a container or packet that is an improvement over containers commonly used in packaging single services of sugar, spices, powdered materials, jellies, liquids and the like. The so called envelope packet now in general use usually requires more packaging material to hold a given bulk of product, without distortion of the packet, than is required of the container made in the form herein shown and described. The envelope packet is usually flat until it is opened and filled, whereas my improved container is made in set-up form and then filled and the top closure sealed in place.

Another object of my invention is to provide a packet having three inside dimensions, and adapted to be made and filled in a sequence of operations by automatic machinery.

Another object of my invention is to provide a set-up container which may be manufactured and filled at high speed by automatic machinery and which may be placed in upright position after opening without spilling the contents.

With such objects in view and others hereinafter explained, my invention consists in the packet container substantially as hereinafter described and claimed.

Of the accompanying drawing:

Figure 1 is a front elevation of the packet representing one embodiment of my invention.

Figure 2 is a top view of Fig. 1.

Figure 3 is a side view of Fig. 1.

Figure 4 is a side view of Fig. 1 showing the top flap of the container opened up for filling or dispensing.

Figure 5 is a perspective view of Fig. 1.

Figure 6 is a perspective view of Fig. l with the top of the container opened to the condition shown in Fig. 4.

.Figure 7 is a section at 77 of Fig. 1.

Figure 8 is a section at 8-8 of Fig. 1.

Similar reference characters indicate similar parts or features in all of the views.

Referring to the illustrated figures, one element of the container is composed of a substantially rectangular base blank 1 having two parallel crease lines 2 and 3 (Fig. 5), the first crease line 2 defining flap 4 for the top closure, a second crease line 3 defining flap 5 for the bottom closure. The entire inner surface of the base blank 1 consists of a heat sealable material 6.

Positioned to and adhesively secured to the blank 1 is a horizontally convex shaped element 10 (Figs. 1, 5 and 8) having wing members 9 and 11 extending from opposite sides of the said element 10 and being defined by vertical creased lines 7 and 8. The first vertical crease line 7 lies in close proximity to one of the side edges of element 10 and defines flap 9 by which one side of the said element 10 is secured to the base blank 1. The second vertical crease line 8 lies in close proximity to the opposite side edge of the said convex shaped element and defines wing 11 by which the adjacent side of element 1.0 is secured to the base blank 1. The inside surfaces of the said element 10 and wing members 9 and 11 have heat sealable surfaces 6 which upon the application of heat and pressure serve to join together the wings 9 and 11 of the convex shaped element it to the base blank 1. The bottom flap 5 of the base blank 1 is folded on crease line 3 and secured by heat and pressure to the bottom horizontal edge of element 10. The container is then filled with the material to be packaged and the top flap 4 of the base blank 1 is folded on crease line 2 and secured by heat and pressure to the top horizontal edge of the convex shaped element 10, to form a filled closed container. 7

Having described my invention, what I claim is:

A container for pulverulent material, comprising a base blank of flat material of a predetermined height and width, a second blank of normally greater width but of less height than the base blank, said second blank having a semi-cylindrical pocket formed thereon, fold lines on said second blank adjacent the side edges of the semicylindrical pocket and forming outwardly extending fianges on opposite sides of the pocket, said flanges being adhesively united to the front of the base blank, the upper and lower ends of the pocket being open, said base blank being formed with transverse fold lines located adjacent the upper and lower ends of the pocket forming bendable top and bottom closure flaps at the upper and lower ends of the base blank, said flaps extending over the respective ends of the pocket to close the same and being adhesively united to the top and bottom edges respectively of the pocket, each of said closure flaps lying in a plane substantially at right angles to the axis of said semi-cylindrical pocket and projecting beyond the front closed side of the pocket to provide tear flaps whereby the ends of the pocket may be opened.

References Cited in the file of this patent UNITED STATES PATENTS 2,191,517 Carson Feb. 27, 1940 2,353,178 Moore July 11, 1944 2,490,779 Butcher Dec. 13, 1949 2,591,276 Middleton Apr. 1, 1952 2,634,857 Weckesser Apr. 14, 1953 2,645,591 Makfauer July 14, 1953 

